/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.apache.tomcat.websocket.pojo;

import org.apache.tomcat.util.res.StringManager;

import javax.websocket.EndpointConfig;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpointConfig;
import java.util.Map;

/**
 * Wrapper class for instances of POJOs annotated with
 * {@link javax.websocket.server.ServerEndpoint} so they appear as standard
 * {@link javax.websocket.Endpoint} instances.
 */
public class PojoEndpointServer extends PojoEndpointBase {

	public static final String POJO_PATH_PARAM_KEY =
			"org.apache.tomcat.websocket.pojo.PojoEndpoint.pathParams";
	public static final String POJO_METHOD_MAPPING_KEY =
			"org.apache.tomcat.websocket.pojo.PojoEndpoint.methodMapping";
	private static final StringManager sm =
			StringManager.getManager(Constants.PACKAGE_NAME);

	@Override
	public void onOpen(Session session, EndpointConfig endpointConfig) {

		ServerEndpointConfig sec = (ServerEndpointConfig) endpointConfig;

		Object pojo;
		try {
			pojo = sec.getConfigurator().getEndpointInstance(
					sec.getEndpointClass());
		} catch (InstantiationException e) {
			throw new IllegalArgumentException(sm.getString(
					"pojoEndpointServer.getPojoInstanceFail",
					sec.getEndpointClass().getName()), e);
		}
		setPojo(pojo);

		@SuppressWarnings("unchecked")
		Map<String, String> pathParameters =
				(Map<String, String>) sec.getUserProperties().get(
						POJO_PATH_PARAM_KEY);
		setPathParameters(pathParameters);

		PojoMethodMapping methodMapping =
				(PojoMethodMapping) sec.getUserProperties().get(
						POJO_METHOD_MAPPING_KEY);
		setMethodMapping(methodMapping);

		doOnOpen(session, endpointConfig);
	}
}
